spot check

check and balance

Provide mutual oversight and limitation by independent organizations in order to prevent abuses of power.

check is in the mail

A common excuse used by debtors to put off creditors.

check the math

To verify the source or accuracy of something.

check through

To permit someone to continue onward, e.g. through a security checkpoint, after verifying their identity, tickets, etc.

gut check

An honest, reflective appraisal of one's true feelings concerning a matter of concern.

hit the spot

To be particularly pleasing or appropriate; to be just right.

reality check

A wake-up call; a reminder.

soft spot

A sentimental fondness or affection.